Merge branch 'develop' of github.com:fritzy/SleekXMPP into develop

15 files changed, 410 insertions, 205 deletions

diff --git a/docs/api/basexmpp.rst b/docs/api/basexmpp.rst
new file mode 100644
index 00000000..841df3db
--- /dev/null
+++ b/docs/api/basexmpp.rst
@@ -0,0 +1,8 @@
+========
+basexmpp
+========
+
+.. module:: sleekxmpp.basexmpp
+
+.. autoclass:: BaseXMPP
+    :members:
diff --git a/docs/api/xmlstream.rst b/docs/api/xmlstream.rst
new file mode 100644
index 00000000..7835bf57
--- /dev/null
+++ b/docs/api/xmlstream.rst
@@ -0,0 +1,8 @@
+=========
+xmlstream
+=========
+
+.. module:: sleekxmpp.xmlstream
+
+.. autoclass:: XMLStream
+    :members:
diff --git a/docs/features.rst b/docs/features.rst
new file mode 100644
index 00000000..4d93d5c3
--- /dev/null
+++ b/docs/features.rst
@@ -0,0 +1,2 @@
+How to Use Stream Features
+==========================
diff --git a/docs/getting_started/echobot.rst b/docs/getting_started/echobot.rst
index 9defca6b..053a76f2 100644
--- a/docs/getting_started/echobot.rst
+++ b/docs/getting_started/echobot.rst
@@ -1,3 +1,5 @@
+.. _echobot:
+
 ===============================
 SleekXMPP Quickstart - Echo Bot
 ===============================
@@ -386,127 +388,3 @@ can also be found in the SleekXMPP `examples directory <http://github.com/fritzy
 
 .. include:: ../../examples/echo_client.py
     :literal:
-
-
-..
-..    #!/usr/bin/env python
-..    # -*- coding: utf-8 -*-
-..    import sys
-..    import logging
-..    import time
-..    import getpass
-..    from optparse import OptionParser
-..
-..    import sleekxmpp
-..
-..
-..    class EchoBot(sleekxmpp.ClientXMPP):
-..
-..        """
-..        A simple SleekXMPP bot that will echo messages it
-..        receives, along with a short thank you message.
-..        """
-..
-..        def __init__(self, jid, password):
-..            sleekxmpp.ClientXMPP.__init__(self, jid, password)
-..
-..            # The session_start event will be triggered when
-..            # the bot establishes its connection with the server
-..            # and the XML streams are ready for use. We want to
-..            # listen for this event so that we we can intialize
-..            # our roster.
-..            self.add_event_handler("session_start", self.start)
-..
-..            # The message event is triggered whenever a message
-..            # stanza is received. Be aware that that includes
-..            # MUC messages and error messages.
-..            self.add_event_handler("message", self.message)
-..
-..        def start(self, event):
-..            """
-..            Process the session_start event.
-..
-..            Typical actions for the session_start event are
-..            requesting the roster and broadcasting an intial
-..            presence stanza.
-..
-..            Arguments:
-..                event -- An empty dictionary. The session_start
-..                         event does not provide any additional
-..                         data.
-..            """
-..            self.send_presence()
-..            self.get_roster()
-..
-..        def message(self, msg):
-..            """
-..            Process incoming message stanzas. Be aware that this also
-..            includes MUC messages and error messages. It is usually
-..            a good idea to check the messages's type before processing
-..            or sending replies.
-..
-..            Arguments:
-..                msg -- The received message stanza. See the documentation
-..                       for stanza objects and the Message stanza to see
-..                       how it may be used.
-..            """
-..            if msg['type'] in ('normal', 'chat'):
-..                msg.reply("Thanks for sending\n%(body)s" % msg).send()
-..
-..
-..    if __name__ == '__main__':
-..        # Setup the command line arguments.
-..        optp = OptionParser()
-..
-..        # Output verbosity options.
-..        optp.add_option('-q', '--quiet', help='set logging to ERROR',
-..                        action='store_const', dest='loglevel',
-..                        const=logging.ERROR, default=logging.INFO)
-..        optp.add_option('-d', '--debug', help='set logging to DEBUG',
-..                        action='store_const', dest='loglevel',
-..                        const=logging.DEBUG, default=logging.INFO)
-..        optp.add_option('-v', '--verbose', help='set logging to COMM',
-..                        action='store_const', dest='loglevel',
-..                        const=5, default=logging.INFO)
-..
-..        # JID and password options.
-..        optp.add_option("-j", "--jid", dest="jid",
-..                        help="JID to use")
-..        optp.add_option("-p", "--password", dest="password",
-..                        help="password to use")
-..
-..        opts, args = optp.parse_args()
-..
-..        # Setup logging.
-..        logging.basicConfig(level=opts.loglevel,
-..                            format='%(levelname)-8s %(message)s')
-..
-..        if opts.jid is None:
-..            opts.jid = raw_input("Username: ")
-..        if opts.password is None:
-..            opts.password = getpass.getpass("Password: ")
-..
-..        # Setup the EchoBot and register plugins. Note that while plugins may
-..        # have interdependencies, the order in which you register them does
-..        # not matter.
-..        xmpp = EchoBot(opts.jid, opts.password)
-..        xmpp.register_plugin('xep_0030') # Service Discovery
-..        xmpp.register_plugin('xep_0199') # XMPP Ping
-..
-..        # If you are working with an OpenFire server, you may need
-..        # to adjust the SSL version used:
-..        # xmpp.ssl_version = ssl.PROTOCOL_SSLv3
-..
-..        # Connect to the XMPP server and start processing XMPP stanzas.
-..        if xmpp.connect():
-..            # If you do not have the pydns library installed, you will need
-..            # to manually specify the name of the server if it does not match
-..            # the one in the JID. For example, to use Google Talk you would
-..            # need to use:
-..            #
-..            # if xmpp.connect(('talk.google.com', 5222)):
-..            #     ...
-..            xmpp.process(threaded=False)
-..            print("Done")
-..        else:
-..            print("Unable to connect.")
diff --git a/docs/getting_started/sendlogout.rst b/docs/getting_started/sendlogout.rst
index 2f9f1edf..a1352db9 100644
--- a/docs/getting_started/sendlogout.rst
+++ b/docs/getting_started/sendlogout.rst
@@ -1,5 +1,94 @@
-Login, Send a Message, and Disconnect
-=====================================
+Sign in, Send a Message, and Disconnect
+=======================================
+
+.. note::
+    
+    If you have any issues working through this quickstart guide
+    or the other tutorials here, please either send a message to the
+    `mailing list <http://groups.google.com/group/sleekxmpp-discussion>`_
+    or join the chat room at `sleek@conference.jabber.org
+    <xmpp:sleek@conference.jabber.org?join>`_.
 
 A common use case for SleekXMPP is to send one-off messages from
-time to time. 
+time to time. For example, one use case could be sending out a notice when 
+a shell script finishes a task.
+
+We will create our one-shot bot based on the pattern explained in :ref:`echobot`. To
+start, we create a client class based on :class:`ClientXMPP <sleekxmpp.clientxmpp.ClientXMPP>` and
+register a handler for the :term:`session_start` event. We will also accept parameters
+for the JID that will receive our message, and the string content of the message.
+
+.. code-block:: python
+
+    import sleekxmpp
+
+
+    class SendMsgBot(sleekxmpp.ClientXMPP):
+        
+        def __init__(self, jid, password, recipient, msg):
+            super(SendMsgBot, self).__init__(jid, password)
+
+            self.recipient = recipient
+            self.msg = msg
+
+            self.add_event_handler('session_start', self.start)
+
+        def start(self, event):
+            self.send_presence()
+            self.get_roster()
+
+Note that as in :ref:`echobot`, we need to include send an initial presence and request
+the roster. Next, we want to send our message, and to do that we will use :meth:`send_message <sleekxmpp.basexmpp.BaseXMPP.send_message>`.
+
+.. code-block:: python
+
+    def start(self, event):
+        self.send_presence()
+        self.get_roster()
+
+        self.send_message(mto=self.recipient, mbody=self.msg)
+
+Finally, we need to disconnect the client using :meth:`disconnect <sleekxmpp.xmlstream.XMLStream.disconnect>`.
+Now, sent stanzas are placed in a queue to pass them to the send thread. If we were to call
+:meth:`disconnect <sleekxmpp.xmlstream.XMLStream.disconnect>` without any parameters, then it is possible
+for the client to disconnect before the send queue is processed and the message is actually
+sent on the wire. To ensure that our message is processed, we use 
+:meth:`disconnect(wait=True) <sleekxmpp.xmlstream.XMLStream.disconnect>`.
+
+.. code-block:: python
+
+    def start(self, event):
+        self.send_presence()
+        self.get_roster()
+
+        self.send_message(mto=self.recipient, mbody=self.msg)
+
+        self.disconnect(wait=True)
+
+.. warning::
+
+    If you happen to be adding stanzas to the send queue faster than the send thread
+    can process them, then :meth:`disconnect(wait=True) <sleekxmpp.xmlstream.XMLStream.disconnect>`
+    will block and not disconnect.
+
+Final Product
+-------------
+
+.. compound::
+
+    The final step is to create a small runner script for initialising our ``SendMsgBot`` class and adding some
+    basic configuration options. By following the basic boilerplate pattern in :ref:`echobot`, we arrive
+    at the code below. To experiment with this example, you can use:
+
+    .. code-block:: sh
+
+            python send_client.py -d -j oneshot@example.com -t someone@example.net -m "This is a message"
+
+    which will prompt for the password and then log in, send your message, and then disconnect. To test, open
+    your regular IM client with the account you wish to send messages to. When you run the ``send_client.py``
+    example and instruct it to send your IM client account a message, you should receive the message you
+    gave. If the two JIDs you use also have a mutual presence subscription (they're on each other's buddy lists)
+    then you will also see the ``SendMsgBot`` client come online and then go offline.
+
+.. include:: ../../examples/send_client.py
+    :literal:
diff --git a/docs/index.rst b/docs/index.rst
index 95e49743..5da389b9 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -67,7 +67,7 @@ SleekXMPP's design goals and philosphy are:
 Getting Started (with Examples)
 -------------------------------
 .. toctree::
-    :maxdepth: 2
+    :maxdepth: 1
     
     getting_started/echobot
     getting_started/sendlogout
@@ -82,27 +82,29 @@ Getting Started (with Examples)
 Tutorials, FAQs, and How To Guides
 ----------------------------------
 .. toctree::
-    :maxdepth: 2
+    :maxdepth: 1
    
     xeps
     xmpp_tdg
     create_plugin
+    features
     sasl
     handlersmatchers
 
 Plugin Guides
 ~~~~~~~~~~~~~
 .. toctree:: 
-    :maxdepth: 2
+    :maxdepth: 1
 
     guide_xep_0030
 
 SleekXMPP Architecture and Design
 ---------------------------------
 .. toctree::
-    :maxdepth: 2
+    :maxdepth: 3
 
-    architecture.rst
+    architecture
+    plugin_arch
 
 API Reference
 -------------
@@ -111,6 +113,8 @@ API Reference
     
     event_index
     api/clientxmpp
+    api/basexmpp
+    api/xmlstream
 
 Additional Info
 ---------------
diff --git a/docs/plugin_arch.rst b/docs/plugin_arch.rst
new file mode 100644
index 00000000..0141b793
--- /dev/null
+++ b/docs/plugin_arch.rst
@@ -0,0 +1,2 @@
+Plugin Architecture
+===================
diff --git a/examples/roster_browser.py b/examples/roster_browser.py
new file mode 100644
index 00000000..d699d3cb
--- /dev/null
+++ b/examples/roster_browser.py
@@ -0,0 +1,171 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+    SleekXMPP: The Sleek XMPP Library
+    Copyright (C) 2011  Nathanael C. Fritz
+    This file is part of SleekXMPP.
+
+    See the file LICENSE for copying permission.
+"""
+
+import sys
+import time
+import logging
+import getpass
+import threading
+from optparse import OptionParser
+
+import sleekxmpp
+from sleekxmpp.exceptions import IqError, IqTimeout
+
+
+# Python versions before 3.0 do not use UTF-8 encoding
+# by default. To ensure that Unicode is handled properly
+# throughout SleekXMPP, we will set the default encoding
+# ourselves to UTF-8.
+if sys.version_info < (3, 0):
+    reload(sys)
+    sys.setdefaultencoding('utf8')
+
+
+class RosterBrowser(sleekxmpp.ClientXMPP):
+
+    """
+    A basic script for dumping a client's roster to
+    the command line.
+    """
+
+    def __init__(self, jid, password):
+        sleekxmpp.ClientXMPP.__init__(self, jid, password)
+        # The session_start event will be triggered when
+        # the bot establishes its connection with the server
+        # and the XML streams are ready for use. We want to
+        # listen for this event so that we we can intialize
+        # our roster. We need threaded=True so that the
+        # session_start handler doesn't block event processing
+        # while we wait for presence stanzas to arrive.
+        self.add_event_handler("session_start", self.start, threaded=True)
+        self.add_event_handler("changed_status", self.wait_for_presences)
+
+        self.received = set()
+        self.presences_received = threading.Event()
+
+    def start(self, event):
+        """
+        Process the session_start event.
+
+        Typical actions for the session_start event are
+        requesting the roster and broadcasting an intial
+        presence stanza.
+
+        Arguments:
+            event -- An empty dictionary. The session_start
+                     event does not provide any additional
+                     data.
+        """
+        try:
+            self.get_roster()
+        except IqError as err:
+            print('Error: %' % err.iq['error']['condition'])
+        except IqTimeout:
+            print('Error: Request timed out')
+        self.send_presence()
+
+
+        print('Waiting for presence updates...\n')
+        self.presences_received.wait(5)
+
+        print('Roster for %s' % self.boundjid.bare)
+        groups = self.client_roster.groups()
+        for group in groups:
+            print('\n%s' % group)
+            print('-' * 72)
+            for jid in groups[group]:
+                sub = self.client_roster[jid]['subscription']
+                name = self.client_roster[jid]['name']
+                if self.client_roster[jid]['name']:
+                    print(' %s (%s) [%s]' % (name, jid, sub))
+                else:
+                    print(' %s [%s]' % (jid, sub))
+
+                connections = self.client_roster.presence(jid)
+                for res, pres in connections.items():
+                    show = 'available'
+                    if pres['show']:
+                        show = pres['show']
+                    print('   - %s (%s)' % (res, show))
+                    if pres['status']:
+                        print('       %s' % pres['status'])
+
+        self.disconnect()
+
+    def wait_for_presences(self, pres):
+        """
+        Track how many roster entries have received presence updates.
+        """
+        self.received.add(pres['from'].bare)
+        if len(self.received) >= len(self.client_roster.keys()):
+            self.presences_received.set()
+        else:
+            self.presences_received.clear()
+
+
+
+if __name__ == '__main__':
+    # Setup the command line arguments.
+    optp = OptionParser()
+    optp.add_option('-q','--quiet', help='set logging to ERROR',
+                    action='store_const',
+                    dest='loglevel',
+                    const=logging.ERROR,
+                    default=logging.ERROR)
+    optp.add_option('-d','--debug', help='set logging to DEBUG',
+                    action='store_const',
+                    dest='loglevel',
+                    const=logging.DEBUG,
+                    default=logging.ERROR)
+    optp.add_option('-v','--verbose', help='set logging to COMM',
+                    action='store_const',
+                    dest='loglevel',
+                    const=5,
+                    default=logging.ERROR)
+
+    # JID and password options.
+    optp.add_option("-j", "--jid", dest="jid",
+                    help="JID to use")
+    optp.add_option("-p", "--password", dest="password",
+                    help="password to use")
+    opts,args = optp.parse_args()
+
+    # Setup logging.
+    logging.basicConfig(level=opts.loglevel,
+                        format='%(levelname)-8s %(message)s')
+
+    if opts.jid is None:
+        opts.jid = input("Username: ")
+    if opts.password is None:
+        opts.password = getpass.getpass("Password: ")
+
+    xmpp = RosterBrowser(opts.jid, opts.password)
+
+    # If you are working with an OpenFire server, you may need
+    # to adjust the SSL version used:
+    # xmpp.ssl_version = ssl.PROTOCOL_SSLv3
+
+    # If you want to verify the SSL certificates offered by a server:
+    # xmpp.ca_certs = "path/to/ca/cert"
+
+    # Connect to the XMPP server and start processing XMPP stanzas.
+    if xmpp.connect():
+        # If you do not have the pydns library installed, you will need
+        # to manually specify the name of the server if it does not match
+        # the one in the JID. For example, to use Google Talk you would
+        # need to use:
+        #
+        # if xmpp.connect(('talk.google.com', 5222)):
+        #     ...
+        xmpp.process(threaded=False)
+    else:
+        print("Unable to connect.")
+
diff --git a/examples/send_client.py b/examples/send_client.py
index fd99e8c9..b3673512 100755
--- a/examples/send_client.py
+++ b/examples/send_client.py
@@ -29,13 +29,18 @@ if sys.version_info < (3, 0):
 class SendMsgBot(sleekxmpp.ClientXMPP):
 
     """
-    A simple SleekXMPP bot that will echo messages it
-    receives, along with a short thank you message.
+    A basic SleekXMPP bot that will log in, send a message,
+    and then log out.
     """
 
-    def __init__(self, jid, password):
+    def __init__(self, jid, password, recipient, message):
         sleekxmpp.ClientXMPP.__init__(self, jid, password)
 
+        # The message we wish to send, and the JID that
+        # will receive it.
+        self.recipient = recipient
+        self.msg = message
+
         # The session_start event will be triggered when
         # the bot establishes its connection with the server
         # and the XML streams are ready for use. We want to
@@ -43,11 +48,6 @@ class SendMsgBot(sleekxmpp.ClientXMPP):
         # our roster.
         self.add_event_handler("session_start", self.start)
 
-        # The message event is triggered whenever a message
-        # stanza is received. Be aware that that includes
-        # MUC messages and error messages.
-        self.add_event_handler("message", self.message)
-
     def start(self, event):
         """
         Process the session_start event.
@@ -63,27 +63,14 @@ class SendMsgBot(sleekxmpp.ClientXMPP):
         """
         self.send_presence()
         self.get_roster()
-        msg = self.Message()
-        msg['to'] = 'user@example.com'
-        msg['type'] = 'chat'
-        msg['body'] = "Hello there!"
-        msg.send()
-        self.disconnect()
-
-    def message(self, msg):
-        """
-        Process incoming message stanzas. Be aware that this also
-        includes MUC messages and error messages. It is usually
-        a good idea to check the messages's type before processing
-        or sending replies.
 
-        Arguments:
-            msg -- The received message stanza. See the documentation
-                   for stanza objects and the Message stanza to see
-                   how it may be used.
-        """
-        #msg.reply("Thanks for sending\n%(body)s" % msg).send()
-        print "Msg rceived from %(body)s: %(jid)s" % msg
+        self.send_message(mto=self.recipient,
+                          mbody=self.msg,
+                          mtype='chat')
+
+        # Using wait=True ensures that the send queue will be
+        # emptied before ending the session.
+        self.disconnect(wait=True)
 
 
 if __name__ == '__main__':
@@ -106,6 +93,10 @@ if __name__ == '__main__':
                     help="JID to use")
     optp.add_option("-p", "--password", dest="password",
                     help="password to use")
+    optp.add_option("-t", "--to", dest="to",
+                    help="JID to send the message to")
+    optp.add_option("-m", "--message", dest="message",
+                    help="message to send")
 
     opts, args = optp.parse_args()
 
@@ -117,14 +108,16 @@ if __name__ == '__main__':
         opts.jid = raw_input("Username: ")
     if opts.password is None:
         opts.password = getpass.getpass("Password: ")
+    if opts.to is None:
+        opts.to = raw_input("Send To: ")
+    if opts.message is None:
+        opts.message = raw_input("Message: ")
 
     # Setup the EchoBot and register plugins. Note that while plugins may
     # have interdependencies, the order in which you register them does
     # not matter.
-    xmpp = SendMsgBot(opts.jid, opts.password)
+    xmpp = SendMsgBot(opts.jid, opts.password, opts.to, opts.message)
     xmpp.register_plugin('xep_0030') # Service Discovery
-    xmpp.register_plugin('xep_0004') # Data Forms
-    xmpp.register_plugin('xep_0060') # PubSub
     xmpp.register_plugin('xep_0199') # XMPP Ping
 
     # If you are working with an OpenFire server, you may need
diff --git a/sleekxmpp/plugins/xep_0004/stanza/field.py b/sleekxmpp/plugins/xep_0004/stanza/field.py
index 43293bfd..8131233c 100644
--- a/sleekxmpp/plugins/xep_0004/stanza/field.py
+++ b/sleekxmpp/plugins/xep_0004/stanza/field.py
@@ -85,7 +85,7 @@ class FormField(ElementBase):
             return None
         elif self._type == 'boolean':
             return valsXML[0].text in self.true_values
-        elif self._type in self.multi_value_types:
+        elif self._type in self.multi_value_types or len(valsXML) > 1:
             values = []
             for valXML in valsXML:
                 if valXML.text is None:
@@ -95,6 +95,8 @@ class FormField(ElementBase):
                 values = "\n".join(values)
             return values
         else:
+            if valsXML[0].text is None:
+                return ''
             return valsXML[0].text
 
     def set_answer(self, answer):
diff --git a/sleekxmpp/plugins/xep_0012.py b/sleekxmpp/plugins/xep_0012.py
index d636d4d7..8fe818b8 100644
--- a/sleekxmpp/plugins/xep_0012.py
+++ b/sleekxmpp/plugins/xep_0012.py
@@ -112,7 +112,4 @@ class xep_0012(base.base_plugin):
         iq.attrib['from'] = self.xmpp.boundjid.full

         id = iq.get('id')

         result = iq.send()

-        if result and result is not None and result.get('type', 'error') != 'error':

-            return result['last_activity']['seconds']

-        else:

-            return False

+        return result['last_activity']['seconds']

diff --git a/sleekxmpp/plugins/xep_0045.py b/sleekxmpp/plugins/xep_0045.py
index 364fbbd9..338ed154 100644
--- a/sleekxmpp/plugins/xep_0045.py
+++ b/sleekxmpp/plugins/xep_0045.py
@@ -188,8 +188,12 @@ class xep_0045(base.base_plugin):
             iq['from'] = ifrom
         query = ET.Element('{http://jabber.org/protocol/muc#owner}query')
         iq.append(query)
-        result = iq.send()
-        if result['type'] == 'error':
+        # For now, swallow errors to preserve existing API
+        try:
+            result = iq.send()
+        except IqError:
+            return False
+        except IqTimeout:
             return False
         xform = result.xml.find('{http://jabber.org/protocol/muc#owner}query/{jabber:x:data}x')
         if xform is None: return False
@@ -209,8 +213,12 @@ class xep_0045(base.base_plugin):
         form = form.getXML('submit')
         query.append(form)
         iq.append(query)
-        result = iq.send()
-        if result['type'] == 'error':
+        # For now, swallow errors to preserve existing API
+        try:
+            result = iq.send()
+        except IqError:
+            return False
+        except IqTimeout:
             return False
         return True
 
@@ -254,8 +262,12 @@ class xep_0045(base.base_plugin):
         destroy.append(xreason)
         query.append(destroy)
         iq.append(query)
-        r = iq.send()
-        if r is False or r['type'] == 'error':
+        # For now, swallow errors to preserve existing API
+        try:
+            r = iq.send()
+        except IqError:
+            return False
+        except IqTimeout:
             return False
         return True
 
@@ -271,9 +283,13 @@ class xep_0045(base.base_plugin):
         query.append(item)
         iq = self.xmpp.makeIqSet(query)
         iq['to'] = room
-        result = iq.send()
-        if result is False or result['type'] != 'result':
-            raise ValueError
+        # For now, swallow errors to preserve existing API
+        try:
+            result = iq.send()
+        except IqError:
+            return False
+        except IqTimeout:
+            return False
         return True
 
     def invite(self, room, jid, reason='', mfrom=''):
@@ -303,8 +319,12 @@ class xep_0045(base.base_plugin):
         iq = self.xmpp.makeIqGet('http://jabber.org/protocol/muc#owner')
         iq['to'] = room
         iq['from'] = ifrom
-        result = iq.send()
-        if result is None or result['type'] != 'result':
+        # For now, swallow errors to preserve existing API
+        try:
+            result = iq.send()
+        except IqError:
+            raise ValueError
+        except IqTimeout:
             raise ValueError
         form = result.xml.find('{http://jabber.org/protocol/muc#owner}query/{jabber:x:data}x')
         if form is None:
diff --git a/sleekxmpp/plugins/xep_0078/legacyauth.py b/sleekxmpp/plugins/xep_0078/legacyauth.py
index bdd2df67..edb8f314 100644
--- a/sleekxmpp/plugins/xep_0078/legacyauth.py
+++ b/sleekxmpp/plugins/xep_0078/legacyauth.py
@@ -56,11 +56,17 @@ class xep_0078(base_plugin):
         iq['type'] = 'get'
         iq['to'] = self.xmpp.boundjid.host
         iq['auth']['username'] = self.xmpp.boundjid.user
-        resp = iq.send(now=True)
 
-        if resp is None or resp['type'] != 'result':
+        try:
+            resp = iq.send(now=True)
+        except IqError:
             log.info("Authentication failed: %s" % resp['error']['condition'])
-            self.xmpp.event('failed_auth', resp, direct=True)
+            self.xmpp.event('failed_auth', direct=True)
+            self.xmpp.disconnect()
+            return True
+        except IqTimeout:
+            log.info("Authentication failed: %s" % 'timeout')
+            self.xmpp.event('failed_auth', direct=True)
             self.xmpp.disconnect()
             return True
 
@@ -91,18 +97,23 @@ class xep_0078(base_plugin):
             iq['auth']['password'] = self.xmpp.password
 
         # Step 3: Send credentials
-        result = iq.send(now=True)
-        if result is not None and result.attrib['type'] == 'result':
-            self.xmpp.features.add('auth')
-
-            self.xmpp.authenticated = True
-            log.debug("Established Session")
-            self.xmpp.sessionstarted = True
-            self.xmpp.session_started_event.set()
-            self.xmpp.event('session_start')
-        else:
+        try:
+            result = iq.send(now=True)
+        except IqError as err:
             log.info("Authentication failed")
             self.xmpp.disconnect()
-            self.xmpp.event("failed_auth")
+            self.xmpp.event("failed_auth", direct=True)
+        except IqTimeout:
+            log.info("Authentication failed")
+            self.xmpp.disconnect()
+            self.xmpp.event("failed_auth", direct=True)
+
+        self.xmpp.features.add('auth')
+
+        self.xmpp.authenticated = True
+        log.debug("Established Session")
+        self.xmpp.sessionstarted = True
+        self.xmpp.session_started_event.set()
+        self.xmpp.event('session_start')
 
         return True
diff --git a/sleekxmpp/plugins/xep_0199/ping.py b/sleekxmpp/plugins/xep_0199/ping.py
index 0fa22f8a..b0304b09 100644
--- a/sleekxmpp/plugins/xep_0199/ping.py
+++ b/sleekxmpp/plugins/xep_0199/ping.py
@@ -11,6 +11,7 @@ import logging
 
 import sleekxmpp
 from sleekxmpp import Iq
+from sleekxmpp.exceptions import IqError, IqTimeout
 from sleekxmpp.xmlstream import register_stanza_plugin
 from sleekxmpp.xmlstream.matcher import StanzaPath
 from sleekxmpp.xmlstream.handler import Callback
@@ -89,8 +90,13 @@ class xep_0199(base_plugin):
         def scheduled_ping():
             """Send ping request to the server."""
             log.debug("Pinging...")
-            resp = self.send_ping(self.xmpp.boundjid.host, self.timeout)
-            if resp is None or resp is False:
+            try:
+                self.send_ping(self.xmpp.boundjid.host, self.timeout)
+            except IqError:
+                log.debug("Ping response was an error." + \
+                          "Requesting Reconnect.")
+                self.xmpp.reconnect()
+            except IqTimeout:
                 log.debug("Did not recieve ping back in time." + \
                           "Requesting Reconnect.")
                 self.xmpp.reconnect()
@@ -142,9 +148,14 @@ class xep_0199(base_plugin):
         iq.enable('ping')
 
         start_time = time.clock()
-        resp = iq.send(block=block,
-                       timeout=timeout,
-                       callback=callback)
+
+        try:
+            resp = iq.send(block=block,
+                           timeout=timeout,
+                           callback=callback)
+        except IqError as err:
+            resp = err.iq
+
         end_time = time.clock()
 
         delay = end_time - start_time
@@ -152,9 +163,6 @@ class xep_0199(base_plugin):
         if not block:
             return None
 
-        if not resp or resp['type'] == 'error':
-            return False
-
         log.debug("Pong: %s %f" % (jid, delay))
         return delay
 
diff --git a/sleekxmpp/roster/single.py b/sleekxmpp/roster/single.py
index deb1ac8b..c2a73d34 100644
--- a/sleekxmpp/roster/single.py
+++ b/sleekxmpp/roster/single.py
@@ -75,6 +75,10 @@ class RosterNode(object):
             self.add(key, save=True)
         return self._jids[key]
 
+    def __len__(self):
+        """Return the number of JIDs referenced by the roster."""
+        return len(self._jids)
+
     def keys(self):
         """Return a list of all subscribed JIDs."""
         return self._jids.keys()
@@ -83,6 +87,16 @@ class RosterNode(object):
         """Returns whether the roster has a JID."""
         return jid in self._jids
 
+    def groups(self):
+        """Return a dictionary mapping group names to JIDs."""
+        result = {}
+        for jid in self._jids:
+            for group in self._jids[jid]['groups']:
+                if group not in result:
+                    result[group] = []
+                result[group].append(jid)
+        return result
+
     def __iter__(self):
         """Iterate over the roster items."""
         return self._jids.__iter__()
@@ -204,10 +218,8 @@ class RosterNode(object):
             iq['roster']['items'] = {jid: {'name': name,
                                            'subscription': subscription,
                                            'groups': groups}}
-            response = iq.send(block, timeout, callback)
-            if response in [False, None] or isinstance(response, Iq):
-                return response
-            return response and response['type'] == 'result'
+
+            return iq.send(block, timeout, callback)
 
     def presence(self, jid, resource=None):
         """